300W Direct Factory Sale Price 260-300Watt Solar Panels

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China main port
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Min Order Qty:
10000 watt
Supply Capability:
100000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 300 Number of Cells(pieces): 1

Product Description:

300W Direct Factory Sale Price 260-300Watt Solar Panels

300W Direct Factory Sale Price 260-300Watt Solar Panels

300W Direct Factory Sale Price 260-300Watt Solar Panels

Solar Module Introduction

Solar modules use light energy (photons) from the sun to generate electricity through the photovoltaic effect. The majority of modules use wafer-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. The structural (load carrying) member of a module can either be the top layer or the back layer. Cells must also be protected from mechanical damage and moisture. Most solar modules are rigid, but semi-flexible ones are available, based on thin-film cells. These early solar modules were first used in space in 1958.

Electrical connections are made in series to achieve a desired output voltage and/or in parallel to provide a desired current capability. The conducting wires that take the current off the modules may contain silver, copper or other non-magnetic conductive transition metals. The cells must be connected electrically to one another and to the rest of the system. Externally, popular terrestrial usage photovoltaic modules use MC3 (older) or MC4 connectors to facilitate easy weatherproof connections to the rest of the system.

 

Specification

 

Model Type

Peak Power-Pmax(W)

5-200W

Open Circuit Voltage-Voc(V)

44.2

Maximum Power Voltage-Vmp(V)

36

Short Circuit Current-Isc(A)

5.4

Maximum Power  Current-Imp(A) 

5

Maximum System Voltage

1000V DC

Maximum Series Fuse Rating

10A

Power Tolerance

 -1~+3%

Temperature Coefficients of Pmax

 -0.45%/℃

Temperature Coefficients of Voc

 -0.348%/℃

Temperature Coefficients of Isc

0.031%/℃

Nominal Operating Cell Temperature

44.5±2℃

Standard Testing Condition(STC)

Irradiance:1000W/m²;Temperature:25℃;AM=1.5

Qualification Test Parameters

Operating Temperature

 -40℃~+85℃

Storage Temperature

 -40℃~+85℃

Pressure Bearing

≥5400Pascal/m²

Wind Bearing

≥5400Pascal/m²

Mechanical Characteristics

Cell Size

Mono 125*125mm±0.5

No.of Cells

72pcs(6*12)

Dimension

1580*808*40mm

Weight

15.5Kg

Glass

3.2mm High Transmission,Low Iron

Frame

Anodized Aluminum Alloy

Junction Box

IP65Rated

Internal Diodes

3 Bypass Diodes

Cable

1*4.0mm² Length 900mm

 

Images
 
Packing & Shipping:

 

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

The normal size is packed by 25pcs/ carton / pallet. Paper carton for FCL shipping and wood carton for LCL shipping.

 

Features

1.High reliability with guaranteed -3% to +5% power output tolerance, ensuring return on investment
2.High conversion efficiency based on leading innovative photovoltaic technologies
3.Withstands high wind-pressure and snow load, and extreme temperature variations
4.Attractive appearanceUnique frame design, high mechanical strength, and easy Installation

Warranty:

For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than  90% of performance. Free from material and workmanship defects within 5 years.

For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.

 

•100% product quality protection

•100% on-time shipment protection

•100% payment protection for your covered amount

FAQ:

1What price for each watt?

It depends on the quantity, delivery date and payment terms.

2What is your size for each module? Can you tell me the Parameter of your module?

We have different series of panels in different output, both c-Si and a-Si. Please take the specification sheet for your reference.

3Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Actually we are only manufacturer of solar panels, but we could try to source them for you in China if you need. We could provide you an optimal system design to instruct you how to install.

4Do you have the CE, TUV, UL Certification?

We’ve already passed all the tests, and any certificate is available.

5Have you ever sold your products to companies in my country?

Of course, we have customers in all general PV markets, but I think we should expand our market share along with the market growth.

6When did your company set up?  You are a new company, how can I believe your quality?

We entered into Solar PV industry in 2005, now we have several plants in manufacturing of a-Si and c-Si panels, and our capacity is 220MW per year. Till now we have already passed all the tests by authorized laboratories, e.g. TUV, VDE, UL.

7Can you help us install the module if we cooperate with you?

We haven’t entered into installation sector, but we have the plan in near future.

8) How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

 (9) Can you do OEM for us?

Yes, we can.

10Can we visit your factory?

Surely, I will arrange the trip basing on your business schedule.

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Q:solar panel installed house roof?
How does the cable wires stay on the solar panel? With wire retention clips (4 per module) that are used to wrap the wire on the underside of the module frame. The home run cables to the transition box (converts between types of wire with no electrical transformation occuring) or combiner box (joins multiple source circuits in parallel, with the positives fused for safety) are usually tied along the racking system components, and with conduit sections used as needed. Racking is another big part of the installation. Don't just make your own homemade wooden rack, as these will weather away to nothing very easily, and cause great failures. GET a professionally designed metal racking system. PV modules are EXPENSIVE. Don't let the racking system cause them to break. It also requires the inverter, if you intend it to connect to the main electric service. If using multiple inverters, you need an AC combining panelboard to join them prior to entering the main electric service. Otherwise, you need to think about how else you might be using them. If you are charging batteries, you need a charge controller.
Q:Building my own solar panels?
Hello, okorder.com. Look at some videos ( There are few hundred of them ) Basically though they all stay with the same idea or plan. Look at how they wire them and get more familiar with what they are running on them depending upon how much wattage panel they are running. I seen a 400 watt system costing about 600 dollars US currency. Because two 200 watt panels = 50.00 each and the diverter = 50 and the charge controller = another 50.00 at the least. Then you have wiring and some deep cycle 2 or 6 volt batteries to loop up which is extra cost if none laying around to use. Check-out youtube though for the best advice and opinion you can give yourself then maybe look at a few solar panel websites which sell Solar kits for some more price ideas. To run a laptop i assume you will need atleast 400 watts and 2 to 4 ,twelve volt batteries which are deep cycle and it might take 3 to 5 days to charge up your batteries but they should charge laptop battery no problem without much loss if you keep laptop charged often. TV is power hungry and you will need something like a $500.00 system for that. 000 watts etc. Tv just drains the battery bank way too fast. So to answer your question about what you can get for 200 bucks. Maybe a 80 watt kit system for about 250 bucks complete except batteries. with 80 watts you could power some cool nighttime night lighting with super bright LEDS or LED light strips which are about 0.3 watts per LED or 5 watt LED cabinet lights work well So for a 80 watt system you probably only want one 2 volt battery or else will take alot longer to charge on such low wattage. But you could run LED lighting for nighttime lighting and easily save 250 dollars in a year off your bill by charging phone from it, using LED lights and other low wattage devices if utilized daily. Just don't draw more power than it makes and it should be ok. Goodluck with your research.
Q:A good brand of solar panels for my house?
I didn't research this. I do know that you must install them on the side or area of the roof that receives the most Sun all day. You can get information at stores like Lowes or HomeDepot.
Q:Do solar panels make electricity from light intensity or watts?
For a particular solar panel, you can't choose between the intensity and the power in terms of which determines the energy produced in a given time, because the two concepts are related. Intensity is the power per unit area. So if you have twice the intensity on a particular panel, solar energy is being delivered at twice the rate. However, if you were to compare two solar panels on which the same light intensity was falling, the panel with greater area would produce electrical energy at a greater rate, as power in intensity times area. In that sense, I'd say that the solar power input determines the electrical power output.
Q:electronics help solar panel?
[] Use it to charge 4 pieces AA cell ( connect in series to make 5V battery pack ) for 0 to 4 hours. Good for cell rated 600mAH ,2000mAH,2500mAH. [2] Cannot increase current. Buy some more this panel and hook them together in parallel to increase current. You need at least ten pieces to make current reaches .6A to light up some 6V bulbs.
Q:How many LED's can power a solar panel?
Your question has a lot of science involved that I don't understand perhaps the link posted in my source for this answer could help you out? It a site containing only info on LED Lights. Good Luck
Q:Is it worth installing solar panels on a house that has no South-facing roof?
Depends how much sun you get. Even if you don't face south, you could still be able to harvest a lot of energy from the sun. You could install panels transversely so they face south to increase sun exposure, but this might not look so nice. Or you could move your house to the Southern hemisphere, when your solar panels should face north. Or install miniature windmills on your roof instead.
Q:How did Obamas funded solar panel plan flop and bunkrupt..where did those billions of dollars go?
Yes, solar panels could change the world if they were especially cheap--but they're not and may not be cheap for many years, if ever. Lots of new technology could change the world but most of it doesn't. The government doesn't have a very good track record of picking winners in the new technology markets; that's something we should probably leave to the venture capitalists to do--with their own money. The money the government spent on solar panels is gone. Racked up as debt that we'll leave to our children and grandchildren to pay off.
Q:Where can I get free solar panels?
Trees, they have plenty of leaves. You'll probably have to buy an educational kit from Radio Shack or something like that. Maybe break some old solar powered calculators open.
Q:Solar Panel costs and sizes?
My okorder.com.

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